Home / 391,112.02-539,738.76-240,209.02

Finding the Fourth Proportional to 391,112.02, 539,738.76 and 240,209.02

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Solution

The fourth proportional to 391,112.02, 539,738.76 and 240,209.02 is: 331,491.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,112.02 : 539,738.76 = 240,209.02 : x
  2. Step 2: Convert to fraction form
    391,112.02/539,738.76 = 240,209.02/x
  3. Step 3: Cross multiply
    391,112.02x = 539,738.76 × 240,209.02
  4. Step 4: Simplify right side
    391,112.02x = 129,650,118,595.62
  5. Step 5: Solve for x
    x = 129,650,118,595.62/391,112.02
  6. Step 6: Final answer
    x = 331,491.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.